IDENTIFIER
{
if (yychar == YYEMPTY)
yychar = YYLEX;
yychar = yylex ();
$$ = build_external_ref ($1, yychar == '(');
}
| CONSTANT
first token on the next line. */
save_filename:
{ if (yychar == YYEMPTY)
$$ = input_filename; }
;
save_lineno:
$$ = lineno; }